The extent to which contaminants are bioavailable has significant implications on human and ecological exposure risk and potential remediation of contaminated soils and sediments. Presentations in this session will focus on (1) the ability of contaminant speciation methods to measure and/or predict bioavailability to human and ecological receptors in contaminated soils and sediments, (2) the ability of soil remediation treatments, including active capping of sediments, to decrease contaminant bioavailability to human and/or ecological receptors, and (3) the use of soil chemical, bioavailability, and toxicological data in making adjustments to human and ecological risk assessment.
S02 Soil Chemistry
Wednesday, November 3, 2010: 8:55 AM-12:00 PM
Long Beach Convention Center, Room 202A, Second Floor
Organizers:
Anna Knox
and
Ronald Checkai
Presidings:
Anna Knox
and
Ronald Checkai
9:45 AM
Soil Invertebrate and Terrestrial Plant Based Toxicity Benchmarks: Bioavailability and Ecological Soil Screening Levels for Energetic Materials.
Ronald Checkai, U.S. Army Edgewood Chemical Biological Center;
Roman Kuperman, U.S. Army Edgewood Chemical Biological Center - Environmental Toxicology;
Michael Simini, U.S. Army Edgewood Chemical Biological Center - Environmental Toxicology;
Carlton T. Phillips, U.S. Army Edgewood Chemical Biological Center - Environmental Toxicology;
Sylvie Rocheleau, Biotechnology Research Institute - National Research Council of Canada;
Jalal Hawari, Biotechnology Research Institute - National Research Council of Canada;
Geoffrey I. Sunahara, Biotechnology Research Institute - National Research Council of Canada
10:00 AM
Predicting Trace Element Bioavailability in Contaminated Soils.
Nicholas Basta, The Ohio State University;
Elizabeth Dayton, The Ohio State University;
Christopher Holloman, The Ohio State University;
Shane Whitacre, The Ohio State University;
Stan Casteel, University of Missouri- Columbia;
Philip Jardine, University of Tennessee;
Tonia Melhorn, Oak Ridge National Laboratory;
Amy L. Hawkins, NAVFAC ESC
10:30 AM
Bioavailable and Bioaccessible Pools of Soil Bound as: Results From Extraction Methods, X-Ray Absorption Spectroscopy, and in-Vivo Feeding Studies.
Bradley Miller, US EPA ,ORD, NRMRL;
Kirk Scheckel, US EPA ,ORD, NRMRL;
Karen Bradham, US EPA, ORD, NERL;
David Thomas, US EPA, ORD, NERL;
Stan Casteel, Univeristy of Missouri- Columbia